partial isotherm (individual isotherm)

in surface chemistry
The function relating, at constant temperature and pressure, the amount of a particular component in the @[email protected] per unit area (or per unit mass of @[email protected] ) with its @[email protected] (or concentration) in the liquid phase. This function can be evaluated only when the location and the thickness of the @[email protected] have been defined.
PAC, 1972, 31, 577. (Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry) on page 594 [Terms] [Paper]